The life expectancy for females in a certain country born during 1980 - 1985 was approximately 79.4 years. This grew to 80 years during 1985 - 1990 and to 80.4 years during 1990 - 1995. Construct a model for this data by finding a quadratic equation whose graph passes through the points (0,79.4). (5,80), and (10,80.4). Use this model to estimate the life expectancy for females born between 1995 and 2000 and for those born between 2000 and 2005.
Let x be the number of years since 1980 and y be the life expectancy for a person born between (1980 +x) and (1980 + x+ 5). Find a quadratic equation whose graph passes through the points (0,79.4). (5,80), and (10,80.4).
y = __x^2 + __x +__
(Type an expression using × as the variable. Use integers or decimals for any numbers in the expression. Do not factor.)
According to the model, the life expectancy of a female born between 1995 and 2000 in this country is __ years.
(Round to the nearest tenth as needed.)
According to the model, the life expectancy of a female born between 2000 and 2005 in this country is __ years.
(Round to the nearest tenth as needed.)